Outage Probability of Macrodiversity Reception in the Presence of Fading and Weibull Co-Channel Interference

Abstract

In this paper macrodiversity reception with macrodiversity selection combining (SC) receiver and two microdiversity SC receivers operating over Gamma shadowed Weibull multipath fading channel in the presence of co-channel interference subjected to Weibull short term fading is analysed. Closed form expression for cumulative distribution function (CDF) of signals at outputs of microdiversity receivers is calculated. These results are used for CDF evaluation of macrodiversity SC receiver output signal envelope. Series of derived expressions for outage probability rapidly convergence from 5 to 10 terms should be summed to achieve accuracy at 5th significant digit for any Gamma long term fading parameters and Weibull short term fading parameters. In this paper, influence of Gamma long term fading severity parameter, Gamma long term fading correlation coefficient and Weibull short term fading nonlinearity parameter on outage probability are analysed and discussed.

Keywords

• co-channel interference
• cumulative distribution function (CDF)
• macrodiversity (MAD)
• microdiversity (MID)
• outage probability
• Weibull